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Lutetian

From Wikipedia, the free encyclopedia
Second age of the Eocene Epoch
This article is about the Lutetian stage in geology. For the adjective and demonym concerning Lutetia, seeLutetia.
Lutetian
48.07 – 41.03Ma
Chronology
−70 —
−65 —
−60 —
−55 —
−50 —
−45 —
−40 —
−35 —
−30 —
−25 —
−20 —
 
Subdivision of the Paleogene according to theICS, as of 2024.[2]
Vertical axis scale:Millions of years ago
Formerly part ofTertiaryPeriod/System
Etymology
Name formalityFormal
Usage information
Celestial bodyEarth
Regional usageGlobal (ICS)
Time scale(s) usedICS Time Scale
Definition
Chronological unitAge
Stratigraphic unitStage
Time span formalityFormal
Lower boundary definitionFAD of the calcareous nannofossilBlackites inflatus
Lower boundary GSSPGorrondatxe section,Western Pyrenees,Basque Country,Spain
43°22′47″N3°00′51″W / 43.3796°N 3.0143°W /43.3796; -3.0143
Lower GSSP ratifiedApril 2011[3]
Upper boundary definitionNot formally defined
Upper boundary definition candidatesCalcareous nannofossil nearLAD of theHaptophyteReticulofenestra reticulata
Upper boundary GSSP candidate section(s)Contessa highway section,Gubbio,Central Apennines,Italy

TheLutetian is, in thegeologic timescale, astage orage in theEocene.[4] It spans the time between48.07 and41.03 Ma. The Lutetian is preceded by theYpresian and is followed by the Bartonian.[5] Together with theBartonian it is sometimes referred to as the Middle Eocene Subepoch.

Stratigraphic definition

[edit]

The Lutetian was named afterLutetia, theLatin name for the city ofParis. The Lutetian Stage was introduced in scientific literature by French geologistAlbert de Lapparent in 1883[6] and revised by A. Blondeau in 1981.[7]

The base of the Lutetian Stage is at the first appearance of the nanofossilBlackites inflatus, according to an official reference profile (GSSP) established in 2011.[8] Of two candidates located inSpain, the Gorrondatxe section was chosen.[9]

The top of the Lutetian (the base of the Bartonian) is at the first appearance ofcalcareous nanoplankton speciesReticulofenestra reticulata.

The Lutetian overlaps with theGeiseltalian and lower RobiacianEuropean Land Mammal Mega Zones (The Lutetian Stage spans theMammal Paleogene zones 11 through 15.[10]), the upperBridgerian andUintanNorth American Land Mammal Ages, the upperArshantan andIrdinmanhanAsian Land Mammal Ages, and theMustersan and lowerDivisaderanSouth American Land Mammal Ages. It is also coeval with the middle Johannian regional stage ofAustralia and the upper Ulatisian and lower Nanzian regional stages ofCalifornia.

References

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  1. ^Zachos, James C.; Kump, Lee R. (May 2005)."Carbon cycle feedbacks and the initiation of Antarctic glaciation in the earliest Oligocene".Global and Planetary Change.47 (1):51–66.Bibcode:2005GPC....47...51Z.doi:10.1016/j.gloplacha.2005.01.001. RetrievedOctober 2, 2025.
  2. ^"International Chronostratigraphic Chart"(PDF).International Commission on Stratigraphy. December 2024. RetrievedOctober 23, 2025.
  3. ^Molina, Eustoquio; Alegret, Laia; Apellaniz, Estibaliz; Bernaola, Gilen; Caballero, Fernando; Jaume Dinarès-Turell; Hardenbol, Jan; Claus Heilmann-Clausen; Juan C. Larrasoana; Hanspeter Luterbacher; Simonetta Monechi; Silvia Ortiz; Xabier Orue-Etxebarria; Aitor Payros; Victoriano Pujalte; Francisco J. Rodríguez-Tobar; Flavia Tori; Josep Tosquella; Alfred Uchman (2011)."The Global Stratotype Section and Point (GSSP) for the base of the Lutetian Stage at the Gorrondatxe section, Spain"(PDF).Episodes.34 (2):86–108.doi:10.18814/epiiugs/2011/v34i2/006.
  4. ^Established by D.G. Jenkins and H. Luterbacher, "Paleogene stages and their boundaries (introductory remarks)" inNeues Jarhbuch fur Geologie und Paläontologie 1992.
  5. ^Gradstein, F.M.; Ogg, J.G. & Smith, A.G. (2004):A Geologic Time Scale 2004,Cambridge University Press.
  6. ^de Lapparent, A.A.C. (1883):Traité de Géologie, Paris.
  7. ^Blondeau (1981): "Lutetian" inBulletin d'information des géologues du Bassin de Paris,2, pp. 167–180.
  8. ^"The Lutetian GSSP at meter 167.85 of the Gorrondatxe section in a dark marly level where the nanofossilBlackites inflatus first appears" (working group website).
  9. ^See thewebsite of Eustoquio Molina for these candidates.
  10. ^Alroy, John."Mammal Paleogene zones". p. The Paleobiology Database. Retrieved15 July 2009.

External links

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Wikisource has original works on the topic:Cenozoic#Paleogene
Cenozoic Era
(present–66.0 Ma)
Quaternary(present–2.58 Ma)
Neogene(2.58–23.0 Ma)
Paleogene(23.0–66.0 Ma)
Example of stratigraphic column
Mesozoic Era
(66.0–252 Ma)
Cretaceous(66.0–145 Ma)
Jurassic(145–201 Ma)
Triassic(201–252 Ma)
Paleozoic Era
(252–539 Ma)
Permian(252–299 Ma)
Carboniferous(299–359 Ma)
Devonian(359–419 Ma)
Silurian(419–444 Ma)
Ordovician(444–485 Ma)
Cambrian(485–539 Ma)
Proterozoic Eon
(539 Ma–2.5 Ga)
Neoproterozoic(539 Ma–1 Ga)
Mesoproterozoic(1–1.6 Ga)
Paleoproterozoic(1.6–2.5 Ga)
Archean Eon(2.5–4 Ga)
Hadean Eon(4–4.6 Ga)
 
ka = kiloannum (thousand years ago);Ma = megaannum (million years ago);Ga = gigaannum (billion years ago).
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